The Icom service manual for the IC-T2H/E-T FM Transceiver provides detailed instructions on setup, operation, and troubleshooting, including disassembly instructions, circuit descriptions, and adjustment procedures. It also includes safety warnings, such as not connecting the transceiver to an AC outlet or a DC power supply exceeding 16 V, and emphasizes the importance of using insulated tools for adjustments to avoid damage.
Manual Overview
The Icom IC-T2H/E-T FM Transceiver service manual provides detailed instructions for troubleshooting, diagnostics, calibration, and adjustments. It emphasizes the importance of ensuring that issues are internal before disassembly and advises against opening the transceiver while connected to a power source. The manual warns against applying excessive RF signals to the antenna connector and stresses the use of insulated tools for adjustments. Calibration procedures include PLL and transmitter adjustments, with specific instructions for using attenuators during testing. The manual includes a comprehensive list of error codes and diagnostics to aid in troubleshooting. Board-level guidance is provided through detailed circuit descriptions and board layouts, highlighting key components such as the RF amplifier, mixer circuits, and power amplifier. Disassembly instructions are clear, detailing the removal of the chassis and main unit. The manual also includes a parts list with ordering information, emphasizing the need for correct part numbers and quantities.
Quick Issues Covered
- Diagnose power-up failures due to incorrect power supply connections.
- Calibrate PLL and transmitter for optimal frequency stability.
- Use schematics for circuit tracing and fault isolation.
Overview
This service manual provides detailed service information for the Icom IC-T2H/E-T FM Transceiver. It covers various model versions including those for the U.S.A., Europe, U.K., Italy, Asia, C.S. America, Taiwan, and Thailand. The manual includes sections on specifications, inside views, disassembly instructions, circuit descriptions, adjustment procedures, parts list, mechanical parts and disassembly, semiconductor information, board layouts, block diagrams, and voltage diagrams. The manual also provides safety warnings and repair notes to ensure proper handling and maintenance of the transceiver.
Specifications
- Frequency coverage: U.S.A. 140.000—150.000 MHz, Europe, U.K., Thailand 144.000—146.000 MHz, Italy, Asia, ANI, C.S.A. 136.000—174.000 MHz, Taiwan 145.000—146.000 MHz
- Mode: FM (F2, F3)
- Current drain (at 9.6 V DC): Transmit at 6.0 W 1.6 A (typical), at 5.0 W 1.5 A (typical) [Thailand], at 1.0 W 0.7 A (typical), Receive max. audio 210 mA (typical), power saved 25 mA (typical), standby 80 mA (typical)
- Frequency stability: +10 ppm (0°C to +50°C; 32°F to 122°F)
- Usable temperature range: -10°C to 60°C; 14°F to 140°F
- Antenna connector: BNC (50 Q)
- No. of memory channels: 43 ch (40 regulator, 2 scan edges and 1 call)
- Acceptable power supply: 9.6 V DC (supplied Ni-Cd cells; negative ground)
- Frequency resolution: 5 kHz and 12.5 kHz
- Dimensions (Projections not included): 58(W) x 140.5(H) x 32.3(D) mm; 2982(W) x 51782(H) x 1942(D) inch
- Weight (with BP-199): 420 g; 14.8 oz
- Output power (9.6 V DC): 6 W typical (high), 5 W typical (high) [Thailand] only, 0.7 W typical (low)
- Modulation system: Variable reactance frequency modulation
- Max. frequency deviation: +5 kHz
- Spurious emissions: Less than —60 dB
- External microphone connector: 8-conductor 2.5 (d) mm (M10”)/2 kQ
- Receive system: Double conversion superheterodyne
- Intermediate frequencies: 1st 30.85 MHz, 2nd 450 kHz
- Sensitivity (12 dB SINAD): Less than 0.18 pV (-122 dBm)
- Squelch sensitivity (threshold): Less than 0.18 wV (-122 dBm)
- Selectivity: More than 15 kHz/-6 dB, Less than 30 kHz/—60 dB
- Spurious and image refection ratio: 60 dB (typical) (except 2nd IF image frequency)
- Audio output power (at 9.6 V DC): 500 mW (typical at 10% distortion with an 8 Q load)
- External speaker connector: 8-conductor 3.5 (d) mm (1%”)/8
Controls & Indicators
Refer to the PDF for details.
Installation / Setup
Refer to the PDF for details.
Operation
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Troubleshooting & Error Codes
Refer to the PDF for details.
Safety & Warnings
DANGER: NEVER connect the transceiver to an AC outlet or to a DC power supply that uses more than 16 V to avoid fire hazards and electric shock. DO NOT expose the transceiver to rain, snow, or any liquids. DO NOT reverse the polarities of the power supply when connecting the transceiver. DO NOT apply an RF signal of more than 20 dBm (100 mW) to the antenna connector to prevent damage to the transceiver’s front end.
REPAIR NOTES: Ensure the problem is internal before disassembling the transceiver. DO NOT open the transceiver until it is disconnected from its power source. DO NOT force any variable components; turn them slowly and smoothly. DO NOT short any circuits or electronic parts; use an insulated tuning tool for all adjustments. DO NOT keep power ON for a long time when the transceiver is defective. DO NOT transmit power into a signal generator or a sweep generator. ALWAYS connect a 40 dB or 50 dB attenuator between the transceiver and a deviation meter or spectrum analyzer when using such test equipment. READ the instructions of test equipment thoroughly before connecting equipment to the transceiver.
Download MANUAL Service manual (PDF – 3.6 MB)
Icom IC-T2H/T2E Service Manual PDF: 3.6 MB. Provides troubleshooting and calibration procedures for efficient repairs.
- Brand: Icom-ic-t2h-ic-t2e-t-service
- Model: MANUAL
- Type: Service manual
- File size: 3.6 MB
Overview
Brief overview of the product.
Specifications
- Key spec 1
- Key spec 2
Controls & Indicators
Control panel/button layout.
Installation / Setup
- Step 1…
- Step 2…
Operation
Basic usage, modes, cycles.
Troubleshooting & Error Codes
| Issue / Code | Fix |
|---|---|
| Example | How to fix… |
Safety & Warnings
- Important warning…
Downloads
Download MANUAL service manual (PDF)
Icom IC-T2H / IC-T2E-T Service Manual Overview
The Icom IC-T2H and IC-T2E-T are handheld transceivers designed for reliable two-way communication. Ideal for amateur radio enthusiasts and professionals alike, these devices provide clear voice transmission, multiple channel memory, and robust build quality. This service manual offers detailed instructions for maintenance, repair, and troubleshooting to ensure optimal performance of your Icom transceiver.
Main Features and Specifications
- Frequency Range: VHF 144–148 MHz
- Power Output: 5 Watts (High), 1 Watt (Low)
- Channel Capacity: 128 Memory Channels
- Built-in CTCSS and DCS Tone Encoding/Decoding
- Battery Type: Rechargeable Ni-Cd or Ni-MH Packs
- LCD Display with Backlight
- Compact and Lightweight Design
- VOX (Voice Operated Transmission) Function
Basic Usage and Operation Tips
To operate the Icom IC-T2H / IC-T2E-T, first ensure the battery is fully charged. Use the channel selector to choose your desired frequency. Press the push-to-talk (PTT) button to transmit and release it to listen. Utilize the built-in CTCSS or DCS tones to communicate on secured channels and avoid interference. Adjust the volume and squelch controls to optimize audio clarity. Refer to the manual for programming memory channels and customizing settings.
Troubleshooting and Maintenance Notes
If you experience weak transmission or reception, check the antenna connection and battery charge level. For intermittent audio or no sound, inspect the speaker and microphone connections. Regularly clean the device exterior and connectors with a soft cloth to prevent dust buildup. Replace the battery pack if operating time decreases significantly. Consult the service manual for detailed circuit diagrams and step-by-step repair procedures.
Safety Reminder
Always operate the transceiver in accordance with local regulations and licensing requirements. Avoid using the device near explosive gases or in hazardous environments. Do not attempt repairs beyond your technical expertise; improper servicing may cause damage or personal injury. Use only manufacturer-approved batteries and accessories to ensure safe and reliable operation.